As a box code, 4100 is used for 1 post office box location.
PO Boxes using 4100
| Suburb | Town | Province |
|---|---|---|
| Adams Mission | Amanzimtoti | KwaZulu-Natal |
Postal code 4100
Amanzimtoti, KwaZulu-Natal
4100 is a PO Box code in KwaZulu-Natal, South Africa, mainly serving Amanzimtoti.